in how many ways can a supermarket chain select 3 out of 12 possible sites for construction of a new supermarket?
2 answers:
Answer: The total number of ways is 1320.
Step-by-step explanation: We are given to find the number of ways in which a supermarket chain selects 3 sites out of 12 possible sites for construction of a new supermarket.
Since the supermarket chain has 12 possible options and they are to select 3 out of them.
So, for first site, there are 12 options,
for second site, there are 11 options
and
for third site, there are 10 options.
Therefore, the total number of ways is given by
Thus, the total number of ways is 1320.
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Answer:
She deposits $350 into the account at the beginning of the year.
Step-by-step explanation:
Let us assume that Keegan deposits $P into her savings account at the beginning of the year.
The account earns 3% simple interest each year and she has $360.50 in her account at the end of the year.
If Keegan did not make any additional deposits or withdrawals during the year.
So, we can write that
⇒ P = $350 (Answer)